How to Reclaim or Enhance Broken Glass Cup Thru Art/Craft Project?

A 100-year old glass teacup once belonging to my wife’s great-grandmother fell from a shelf and broke. While the glass broke beyond the point of repair, there is a significant portion of it (maybe 1/3 or 1/2 of the cup) that is still intact. This portion contains the inscription of my wife’s relative’s name.

I have not yet thrown this cup away because there has to be *something* that can be done with this glass fragment. Do you have any ideas or suggestions for what can be done with this half-cup/sphere of glass?

I would hate to lose the entire historic glass when it could be saved and repurposed somehow.